Acknowledgment to Reviewers of Fractal Fract in 2021

Rigorous peer-reviews are the basis of high-quality academic publishing. Thanks to the great efforts of our reviewers, Fractal Fract was able to maintain its standards for the high quality of its published papers. Thanks to the contribution of our reviewers, in 2021, the median time to first decision was 20 days and the median time to publication was 41 days. The editors would like to extend their gratitude and recognition to the following reviewers for their precious time and dedication, regardless of whether the papers they reviewed were finally published:

A. Raouf Chouikha	Jose M. Rodriguez
Abdellatif Ben Makhlouf	Józef Banaś
Abdelouahab Kadem	Juan A. Vera
Abderrahim Wakif	Juan González-Santander
Abdulkafi Mohammed Saeed	Juarez Dos Santos Azevedo
Abdullah Kargın	Julien Alexandre Dit Sandretto
Abdullah M. Alsharif	Julio Daniel Rossi
Abousnina Rajab	Junesang Choi
Adam Lecko	Kai Diethelm
Adel Ouannas	Kalyanasundaram Madhu
Adeleke Timothy Ademola	Kamal Shah
Agnieszka Lisowska	Kavikumar Jacob
Agnieszka Malinowska	Kayode Mobolaji Ajayi
Ahmad Golbabai	Ke Xu
Ahmadjan Muhammadhaji	Ketson Roberto Maximiano Dos Santos
Ahmed I. Zayed	Khaled M. Saad
Ahmed Mostafa	Khaled Mehrez
Ahmet Akdemir	Khaled Mohamed Khedher
Alberto D’Onofrio	Khaled Zennir
Aldo Jonathan Muñoz-Vázquez	Khalida Inayat Noor
Aleksander Stanislavsky	Khellaf Ammar
Aleksandra Tutueva	Khristo N. Boyadzhiev
Alessio Fiscella	Kolade Owolabi
Alexander Gutfraind	Konstantin Alexandrovich Rybakov
Alexander Iomin	Konstantinos A. Lazopoulos
Alexander Nepomnyashchy	Krystian Jobczyk
Alexandra M. Galhano	Krzysztof Gdawiec
Alexey L. Lukashov	Kyriakos Dimitrios Kantarakias
Alfonsas Vainoras	Lanre Akinyemi
Alfonso Infante	Laura Pezza
Ali Mahmoodirad	Le Dinh Long
Ali N. A. Koam	Leila Marek-Crnjac
Alina-Daniela Vîlcu	Lev Kazakovtsev
Alireza Moradikazerouni	Lewa Alzaleq
Allal Guessab	Ling Yan Hung
Amar Debbouche	Liping Chen
Anatoly A. Alikhanov	Liudmila Gorelova
Anbalagan Pratap	Liviu Iulian Palade
Andrea Burlon	Lorentz Jäntschi
Andrea Moiola	Lorenzo Zino
Andrei Pogrebkov	Lovyagin Yurii
Andrés Aragoneses	Luca Gemignani
Andrew Schumann	Luis Manuel Sánchez Ruiz
Andrey Bogatyrev	Luiz Roberto Evangelista
Andrey Cherstvy	Lukasz Janowski
Andrey V. Andreev	M. Almeshaal
Andrzej Pacana	M. Eshaghi Gordji
Angelica Malaspina	M. Ijaz Khan
Anna Borucka	Maan A. Rasheed
Anna Lai	Magagula Vusi Mpendulo
Anna Napoli	Magda Rebelo
Anton Kasprzhitskii	Mahdi Rezapour
Anum Shafiq	Mahmoud A. Zaky
Anwarud Din	Mahmoud Abouagwa
Apostolos Syropoulos	Mahmoud Higazy
Appanah Rao Appadu	Małgorzata Iwanek
Arman Shojaei	Manuel Fernández-Martínez
Arran Fernandez	Marcel Nicola
Arturo Hidalgo	Marcelo Kaminski Lenzi
Asifa Tassaddiq Hussain	Marcin Koniorczyk
Aslihan Kartci	Marek Czachor
Atanaska Georgieva	María Antonia Navascués
Audrey L. Karperien	Maria Guadalupe Morales-Macías
Avraam Charakopoulos	Maria Manuela Fernandes Rodrigues
Ayub Samadi	Maria Pop
Aziz Khan	Maria Rosaria Formica
Balaram Khatri Ghimire	Maria-Magdalena Boureanu
Balazs Toth	Marianthi Tsakaldimi
Bashir Ahmad	Mario Di Paola
Basit Ali	Mark Kelbert
Behrouz Parsa	Marta Reboiro
Behrouz Safarinejadian	Martin Ćalasan
Behzad V. Farahani	Martin Čech
Beny Neta	Masaaki Mori
Berikbol T. Torebek	Masahiro Yamamoto
Bharani Krishna Mynampati Arunadithya	Masao Yamagishi
Bodo Herzog	Massimiliano Ferrara
Borislav Stoyanov	Matej Babič
Branislav Cvetkovic	Matheus Lazo
Brett Altschul	Mauro Cirio
Bruce C. Berndt	Maxence Martin
Bruno Toaldo	Md. Abdul Kaium Masud
Byron Jacobs	Mehdi Salimi
Calogero Vetro	Mehmet Senol
Carla Pinto	Mehmet Yavuz
Carlo Drago	Mei Yin
Carlos A. Valentim	Meng Leong How
Carlos E. Mejía	Mengxi Shen
Carole Louis-Rose	Mesut Şeker
Chao Zhou	Michael D. Marcozzi
Chaudry Khalique	Michael F. Shlesinger
Chengming Huang	Michael (Michail) Th. Rassia
Chenkuan Li	Michał Niezabitowski
Chih-Te Yang	Mieczyslaw Cichon
Chih-Wen Chang	Mihaela Cristina Baleanu
Ching-Hsin Wang	Mihaela Neamtu
Chi-Shung Tang	Mihaela Simionescu
Cho-Hao Lee	Mikhail A. Artemov
Choonkil Park	Mikhail Sheremet
Christopher Kent	Mikk Vikerpuur
Chun-Yao Lee	Milena Pavlíková
Clara Ionescu	Ming Li
Claude Depollier	Mingzhe Lin
Claudio Arancibia-Ibarra	Mircea Ivanescu
Constantin Udriste	Mirjana Pantovic
Coronel-Escamilla Antonio	Miroslava Antić
Costantino Ricciuti	Mladomir Milutinović
Cristina Biris	Mohamad Alzayed
Cyril D. Enyi	Mohamed Ibrahim Abbas
D. G Prakasha	Mohamed M. Awad
Da-Chin Lour	Mohamed Rabea Eid
Dana-Mihaela Petroșanu	Mohammad Aslefallah
Daniel Bearup	Mohammad Hossein Heydari
Daniela Marian	Mohammad Masjed-Jamei
Dariusz W. Brzeziński	Mohammad Reza Mahmoudi
Dejian Lai	Mohammad Reza Safaei
Dengshan Wang	Mohammad Tamsir
Denis Butusov	Mohammed A. Mirzazadeh
Denis Nikolaevich Gerasimov	Mohammed S. Abdo
Devendra Kumar	Mohsen Razzaghi
Dimitris M. Christodoulou	Mohsen Soltanifar
Ding Ma	Mokhtar Abbasi
Dmitry Lukyanenko	Mokhtar Kirane
Dmitry V. Dolgy	Monika Krasowska
Dominic P. Clemence	Mostafa M. A. Khater
Dominik Kosior	Mouffak Benchohra
Duarte Valério	Mufutau Ajani Rufai
Dumitru Baleanu	Muhamamd E. Samei
Dumitru Vieru	Muhammad Amer Latif
E. Hernández-Balaguera	Muhammad Asif Zahoor Raja
E. L. Shishkina	Muhammad Bhatti
E. Providas	Muhammad Bilal Riaz
Ebenezer Bonyah	Muhammad I. Syam
Eduardo J. S. Villaseñor	Muhammad Qaiser Shahbaz
Elena Boguslavskaya	Murat Cancan
Elena Guardo	Murat Osmanovich Mamchuev
Elena-Corina Cipu	Mustafa Bayram
Eligiusz Postek	Mutaz Mohammad
Emanuel Guariglia	Naeem Saleem
Emilia Bazhlekova	Nagamani Gnaneswaran
Emmanuel Gonzalez	Nandalur Ameer Ahamad
Emmanuel Hanert	Nazar Khan
Erdal Karapiner	Nebojša Dedović
Erhan Set	Necati Ozdemir
Eric Florentin	Nehad Ali Shah
Erick Méndez	Nicolae Secelean
Erkinjon T. Karimov	Nicolas B. Garnier
Ernesto Zambrano-Serrano	Nicolás Muñoz-Galeano
Ervin Kaminski Lenzi	Nikolaos Koltsaklis
Eugene Postnikov	Nikolay A. Sidorov
Eulalia Nualart	Octav Olteanu
Eva H. Dulf	Oleg Semenovich Amosov
Everaldo Souto Medeiros	Olumuyiwa James Peter
Evgenii S. Baranovskii	Orchidea Maria Lecian
Evgeny V. Shchepin	Orlov Viktor Nikolaevich
Fabio Caldarola	Osman Tunç
Fahd Jarad	Ossama Kullie
Fairouz Tchier	Özlem Defterli
Fang Li	Palle Jorgensen
Farooq Ahmad	Panagiotis Bertsias
Farooq Gujar	Paolo Crippa
Farrukh Maksutovich Mukhamedov	Paolo Musolino
Farshid Mirzaee	Patrick D. Shipman
Fateh Mebarek Oudina	Patrick Dondl
Felix Sadyrbaev	Paul Lambert
Ferenc Izsák	Paul Popescu
Fernando S. Silva	Paul W Eloe
Foteini Kariotou	Paulo de Matos
Fotios Chatzitheodoridis	Paweł Drąg
Francesco Carrara	Paweł Zaprawa
Francesco Marotti De Sciarra	Pedro González-Rodelas
Francesco Villecco	Peng Zhao
Francisco Martínez González	Péter Balázs Béda
Frank Hansen	Peter Leach
Gabriela Petruta Rusu	Peter W. Egolf
Gabriella Vadászné Bognár	Petr Pivkin
Gang Li	Philippe A. Robert
Garik Petrosyan	Pier Nicola Sergi
Gaston M. N’Guerekata	Prabhakar Pradhan
Georgia Irina Oros	Pranay Goswami
Gerald L. Knapp	Pratibhamoy Das
Ghasem Alizadeh Afrouzi	Praveen Agarwal
Giacomo Ascione	Przemysław Perlikowski
Gilles Tissot	Pshtiwan Othman Mohammed
Gioacchino Alotta	Pushpendra Kumar
Giovanni Angiulli	Qasem M. Al-Mdallal
Giovanni Molica Bisci	Qiang Li
Giulio Cottone	Qiang Yu
Giuseppe Failla	Qidi Peng
Grigore Salagean	Qingguo Hong
Grzegorz Rza̧dkowski	Radu Paltanea
Guillermo Fernandez Anaya	Raffaela Capitanelli
Guillermo Huerta Cuellar	Ramin Aghababaei
Gülnur Yel	Rasool Shah
Günter Bärwolff	Ravi Agarwal
Gunvant A. Birajdar	Ravi Ravichandran
Gunvant Achutrao Birajdar	‪Ravshan Ashurov
Guofei Pang	Razvan Udroiu
Gustavo Adolfo Muñoz	Renat T. Sibatov
Gyurhan Nedzhibov	Renata Dwornicka
Haitao Qi	Reza Sadaati
Hakeem A Othman	Ricardo Díaz-Calleja
Hamurabi Gamboa-Rosales	Robert Vrabel
Hans Engler	Roberto Garrappa
Hassan A. Emamirad	Rodica Luca
Hassan Hassanabadi	Roman Ivanovich Parovik
Hassen Aydi	Romualdas Bausys
Hector Araya	Rui Xiao
Hengxu Song	S. M. Arifuzzaman
Hichem Eleuch	S. Sh. Rekhviashvili
Hijaz Ahmad	S.A. Edalatpanah
Hong Wang	S.A. Mohiuddine
Hongyu Liu	Sadeq D. Al-Majidi
Hossein Jafari	Saeed Balochian
Hovik Matevossian	Salih Djilali
Hu Chen	Salman Izadkhah
Humberto Rafeiro	Salvatore Sessa
Huseyin Budak	Samad Noeiaghdam
Hyunsoo Kim	Samira Hamani
İ. Onur Kıymaz	Sandra Klinge
Ibrahim Ekren	Santanu Metia
Ilja Kröker	Santos Bravo-Yuste
Ilya Boykov	Sayed Pouria Talebi
Ilya G. Kovalenko	Seda Araz
Imran Asjad	Serdar Cicek
Ioannis Dassios	Sergei Fedotov
Ioannis E. Sarris	Sergei M. Sitnik
Ioannis Purnaras	Sergey Grigor’evich Pyatkov
Irena Jadlovská	Sergey Kryzhevich
Ireneusz Winnicki	Sergey Pirogov
Isabel Sonsoles de Soto García	Sergey Pyatkov
Isabela Roxana Birs	Sergio Madurga
Ivano Colombaro	Serkan Araci
Jaan Janno	Seyedali Mirjalili
Jacek Gulgowski	Shahram Jalalzadeh
Jackel Vui Lung Chew	Shahram Rezapour
Jalil Manafianheris	Shehata E. Abdel Raheem Raheem
Jan Dvorak	Sheraz Aslam
Jan Korbel	Shin-Jye Lee
Ján Terpák	Shishkina Elina
Jan Van Casteren	Shuhua Mao
Janusz Brzdek	Shunsuke Hashimoto
Janusz Gajda	Silverio Rosa
Jaroslav Koton	Sinan Deniz
Javier E. Contreras-Reyes	S.K. Panda
Jay Friedenberg	Stavroula Kapoulea
Jaya Bishwal	Su Hu
Jean Pierre Boon	Sunil Kumar
Jen-Hsu Chang	Svetozar Margenov
Jeong Ryeol Choi	Teodor Atanackovic
Jerzy Baranowski	Thomas Michelitsch
Jesus Manuel Munoz-Pacheco	Tran Quyen
Ji Lin	Valentina Loganina
Jian Cao	Vasileios Fragkoulis
Jianfei Huang	Vladimir E. Fedorov
Jiangtao Du	Vladimir V. Bytev
Jianing Han	Vo Khoa
Jiaqing Wang	Woocheol Choi
Jiazhong Zhang	Yagub Sharifov
Jie Xiao	Yeou-Jiunn Chen
Ji-huan He	Yiheng Wei
Ji-hwei Horng	Yiming Chen
Joaquín Gayoso Cabada	Yingjie Liang
Jocelyn Sabatier	Yongshun Liang
Joel Restrepo	Yoshifumi Saijo
Johannes Müller	Yuliya Mishura
John Candelo Becerra	Yusif Gasimov
Jonathan Blackledge	Zakia Hammouch
Jorge Eduardo Macias-Diaz	Zhang Jin
Jorge Muñoz	Zhichao Hou
Jorge Sanchez-Ortiz	Ziad H. Musslimani
José Ángel Cid	Zuev Sergei Valentinovich
Jose Luis Da Silva	Zuzana Došlá
Jose M. Brotons